Answer:
The change in momentum of the ball is 24 kg-m/s
Explanation:
It is given that,
Mass of the ball, m = 1 kg
Initial velocity of the ball, u = -12 m/s (in downwards)
Final velocity of the ball, v = +12 m/s (in upward)
We need to find the change in momentum of the ball.
Initial momentum of the ball, [tex]p_i=mu=1\ kg\times (-12\ m/s)=-12\ kg-m/s[/tex]
Final momentum of the ball, [tex]p_f=mv=1\ kg\times (12\ m/s)=12\ kg-m/s[/tex]
Change in momentum of the ball, [tex]\Delta p=p_f-p_i[/tex]
[tex]\Delta p=12-(-12)=24\ kg-m/s[/tex]
So, the change in momentum of the ball is 24 kg-m/s. Hence, this is the required solution.
